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Questions and Answers
Define osmosis.
Osmosis is the net movement of water molecules across a partially permeable membrane from an area of higher water concentration to an area of lower water concentration.
What does water concentration refer to?
Water concentration refers to the amount of water compared to solutes (dissolved molecules) in a solution.
Explain how adding solute particles to a beaker affects water concentration.
Adding solute particles to a beaker decreases the water concentration in that beaker.
Why does water move into a cell via osmosis?
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What determines water concentration in a solution?
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Describe the water movement in a cell in terms of solute and water concentration.
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Explain the direction of water movement in osmosis.
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What type of diffusion is osmosis?
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How does adding solute particles to a beaker affect water concentration?
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What happens to the water concentration inside a cell compared to the outside?
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Which solution will have a lower water concentration?
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What determines the direction of water movement in osmosis?
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Study Notes
- Osmosis is a type of diffusion that involves the net movement of water molecules across a partially permeable membrane from an area of higher water concentration to an area of lower water concentration.
- Water concentration refers to the amount of water compared to solutes (dissolved molecules) in a solution.
- A solution with more solute molecules (higher solute concentration) has fewer water molecules and thus a lower water concentration.
- Adding solute particles to a beaker decreases the water concentration in that beaker.
- The inside of a cell, which has a higher solute concentration than the surrounding extracellular fluid, has a lower water concentration, causing water to move into the cell via osmosis.
- Osmosis is the movement of water from an area of higher water concentration to an area of lower water concentration through a semi-permeable membrane.
- Water concentration is determined by the proportion of water to solutes in a solution.
- In a cell, the inside has a higher solute concentration and a lower water concentration compared to the outside, leading to water moving into the cell via osmosis.
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Description
Test your knowledge on osmosis and water concentration with this quiz. Learn about the movement of water molecules across a semi-permeable membrane and how solute concentration influences water concentration in solutions and cells.
